BRS 420: Early maturity cassava cultivar for production of flour and starch, adapted to no-till planting and mechanization

Rangel, Marco Antonio Sedrez; Ringenberg, Rudiney; Vieira, Eduardo Alano; Fialho, Josefino de Freitas; Santos, Vanderlei da Silva; Fey, Emerson

doi:10.1590/1984-70332022v22n2c14

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Crop Breeding and Applied Biotechnology

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CULTIVAR RELEASE • Crop Breed. Appl. Biotechnol. 22 (2) • 2022 • https://doi.org/10.1590/1984-70332022v22n2c14 copy

BRS 420: Early maturity cassava cultivar for production of flour and starch, adapted to no-till planting and mechanization

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract:

The cultivar BRS 420 has superior starch yields in early and late harvest, moderate resistance to the main diseases of the crop, adaptation to mechanized planting and to the no-till system, as well as rapid formation of soil cover (which assists in weed control). It represents an alternative for cassava growers in Paraná and Mato Grosso do Sul.

Keywords:
Manihot esculenta Crantz; plant breeding; dry matter yield; root yield

Cultivar	Location	Crop Season	Tillage method	Months to harvest	RY	S%	SY
BRS 420	MCR	2012/2013	no-till	11	54.78 A	32.1 A	17.7 A
Santa Helena	MCR	2012/2013	no-till	11	31.59 B	32.0 A	10.1 B
Baianinha	MCR	2012/2013	no-till	11	29.58 B	30.3 B	9.1 B
Check cultivars	MCR	2012/2013	no-till	11	30.58	31.2	9.6
Superiority (%)	MCR	2012/2013	no-till	11	79.1	2.9	84.4

BRS 420	PRV	2013/2015	no-till	18	62.3 A	29.7 A	18.5 A
Cascuda	PRV	2013/2015	no-till	18	28.8 B	30.2 A	8.7 B
Santa Helena	PRV	2013/2015	no-till	18	21.2 C	30.3 A	6.4 B
IAC 90	PRV	2013/2015	no-till	18	31.9 B	22.3 B	7.1 B
Check cultivars	PRV	2013/2015	no-till	18	27.3	27.6	7.4
Superiority (%)	PRV	2013/2015	no-till	18	128.2	7.6	150.0
BRS 420	TMB	2014/2015	no-till	8	32.9 A	34.5 A	11.4 A
Baianinha	TMB	2014/2015	no-till	8	17.6 B	30.5 C	5.4 B
Santa Helena	TMB	2014/2015	no-till	8	13.7 B	33.2 B	4.6 B
IAC 90	TMB	2014/2015	no-till	8	13.7 B	32.7 B	4.5 B
Check cultivars	TMB	2014/2015	no-till	8	15.0	32.1	4.8
Superiority (%)	TMB	2014/2015	no-till	8	119.3	7.5	137.5

Cultivar	Location	Crop Season	Tillage method	Months to harvest	RY	S%	SY
BRS 420	ERO	2014/2015	no-till	10	33.5 A	32.2 A	10.8 A
Cascuda	ERO	2014/2015	no-till	10	26.3 B	31.6 B	8.3 B
Santa Helena	ERO	2014/2015	no-till	10	28.6 B	32.1 A	9.2 B
Baianinha	ERO	2014/2015	no-till	10	27.5 B	31.6 B	8.7 B
Check cultivars	ERO	2014/2015	no-till	10	27.5	31.79	8.7
Superiority (%)	ERO	2014/2015	no-till	10	22.0	1.4	24
BRS 420	ERO	2014/2016	no-till	23	47.7 B	28.9 A	13.8 B
Cascuda	ERO	2014/2016	no-till	23	59.8 A	27.9 A	16.7 A
Santa Helena	ERO	2014/2016	no-till	23	39.2 C	30.4 A	11.9 B
IAC 90	ERO	2014/2016	no-till	23	40.9 C	27.6 B	11.3 B
Baianinha	ERO	2014/2016	no-till	23	27.0 D	29.3 A	7.9 C
Check cultivars	ERO	2014/2016	no-till	23	41.7	28.8	12.0
Superiority (%)	ERO	2014/2016	no-till	23	14.3	0.5	15.5
BRS 420	NVI	2014/2016	conventional	18	44.5 A	31.9 B	14.3 A
Baianinha	NVI	2014/2016	conventional	18	17.0 C	31.5 B	5.3 B
IAC 90	NVI	2014/2016	conventional	18	37.5 B	33.2 A	12.5 A
Check cultivars	NVI	2014/2016	conventional	18	27.3	32.4	8.9
Superiority (%)	NVI	2014/2016	conventional	18	63.0	-1.5	60.7

Cultivar	Location	Crop Season	Tillage method	Months to harvest	RY	S%	SY
BRS 420	ERO	2015/2016	no-till	12	25.1 B	31.7 A	8.0 B
Cascuda	ERO	2015/2016	no-till	12	30.5 A	31.4 A	9.5 A
Santa Helena	ERO	2015/2016	no-till	12	22.7 B	29.4 B	6.7 B
Baianinha	ERO	2015/2016	no-till	12	34.3 A	30.6 B	10.6 A
IAC 90	ERO	2015/2016	no-till	12	18.4 C	32.2 A	5.9 B
Check cultivars	ERO	2015/2016	no-till	12	26.5	30.9	8.2
Superiority (%)	ERO	2015/2016	no-till	12	-5.3	2.6	-2.4
BRS 420	ERO	2015/2016	no-till	18	50.9 A	31.6 A	16.0 A
Cascuda	ERO	2015/2016	no-till	18	41.2 B	27.0 B	10.9 C
Santa Helena	ERO	2015/2016	no-till	18	54.1 A	27.1 B	14.8 B
Baianinha	ERO	2015/2016	no-till	18	45.4 B	29.4 A	13.4 B
IAC 90	ERO	2015/2016	no-till	18	36.1 C	30.3 A	10.9 C
Check cultivars	ERO	2015/2016	no-till	18	44.2	28.5	12.5
Superiority (%)	ERO	2015/2016	no-till	18	15.2	10.9	28.0

Cultivar	Location	Crop Season	Tillage method	Months to harvest	RY	S%	SY
BRS 420	NVI	2016/2017	conventional	10	47.6 A	31.5 A	15.0 A
Santa Helena	NVI	2016/2017	conventional	10	39.2 B	28.2 A	11.1 B
IAC 90	NVI	2016/2017	conventional	10	38.7 B	29.6 A	11.5 B
Check cultivars	NVI	2016/2017	conventional	10	39.0	28.9	11.3
Superiority (%)	NVI	2016/2017	conventional	10	22.0	9.0	32.7
BRS 420	NVI	2016/2017	conventional	12	46.8 A	30.9 A	14.5 A
Santa Helena	NVI	2016/2017	conventional	12	33.0 B	28.2 B	9.3 B
IAC 90	NVI	2016/2017	conventional	12	41.9 A	30.9 A	12.9 A
Check cultivars	NVI	2016/2017	conventional	12	37.5	29.6	11.1
Superiority (%)	NVI	2016/2017	conventional	12	24.8	4.4	30.6

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